Denis Reggie, after 1,900 weddings, sets up formal groups: bride on the groom's right, bridesmaids in front, groomsmen behind, and a 36-inch white umbrella beside the groom carrying two CTO-gelled Canon 600EX flashes, triggered by an ST-E3 on a 5D Mark IV with a 24-70mm at 35 to 50mm.
